Materials Data on Mg3Ag by Materials Project
Mg3Ag is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Mg is bonded to eight equivalent Mg and four equivalent Ag atoms to form distorted MgMg8Ag4 cuboctahedra that share corners with four equivalent AgMg12 cuboctahedra, corners with fourteen equivalent MgMg8Ag4 cuboctahedra, edges with six equivalent AgMg12 cuboctahedra, edges with twelve equivalent MgMg8Ag4 cuboctahedra, faces with four equivalent AgMg12 cuboctahedra, and faces with sixteen equivalent MgMg8Ag4 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.01–3.15 Å. There are two shorter (3.01 Å) and two longer (3.08 Å) Mg–Ag bond lengths. Ag is bonded to twelve equivalent Mg atoms to form AgMg12 cuboctahedra that share corners with six equivalent AgMg12 cuboctahedra, corners with twelve equivalent MgMg8Ag4 cuboctahedra, edges with eighteen equivalent MgMg8Ag4 cuboctahedra, faces with eight equivalent AgMg12 cuboctahedra, and faces with twelve equivalent MgMg8Ag4 cuboctahedra.